Instructions

Port-Doubler
Published: 06.08.2018 Copyright by Joy-IT 4
The port doubler is now ready for use. An additional driver installation is not necessary.
This expansion board quadruples your GPIO bar. Each pin is now available four times.
3. USAGE
Attention! Please note that the port doubler only quadruples your GPIO bar. A de-
fined pin behaves the same on all four GPIO ports. A different assignment of a spe-
cific pin is technically not possible.
1 3.3V DC
3 GPIO 2 (SDA1, I2C)
5 GPIO 3 (SCL1, I2C)
7 GPIO 4
9 Ground
11 GPIO 17
13 GPIO 27
15 GPIO 22
17 3.3V
19 GPIO 10 (SPI, MOSI)
21 GPIO 9 (SPI, MISO)
23 GPIO 11 (SPI, CLK)
25 Ground
27 ID_SD (I2C, EEPROM)
29 GPIO 5
31 GPIO 6
33 GPIO 13
35 GPIO 19
37 GPIO 26
39 Ground
2 5V DC
4 5V DC
6 Ground
8 GPIO 14 (TXD0)
10 GPIO 15 (RXD0)
12 GPIO 18
14 Ground
16 GPIO 23
18 GPIO 24
20 Ground
22 GPIO 25
24 GPIO 8 (SPI)
26 GPIO 7 (SPI)
28 ID_SC
30 Ground
32 GPIO 12
34 Ground
36 GPIO 16
38 GPIO 20
40 GPIO 21